70999943 has 8 divisors (see below), whose sum is σ = 82121088. Its totient is φ = 60123384.

The previous prime is 70999933. The next prime is 70999961. The reversal of 70999943 is 34999907.

It is a sphenic number, since it is the product of 3 distinct primes.

It is a cyclic number.

It is not a de Polignac number, because 70999943 - 2⁴ = 70999927 is a prime.

It is a junction number, because it is equal to n+sod(n) for n = 70999891 and 70999900.

It is a congruent number.

It is not an unprimeable number, because it can be changed into a prime (70999933) by changing a digit.

It is a polite number, since it can be written in 7 ways as a sum of consecutive naturals, for example, 60521 + ... + 61682.

It is an arithmetic number, because the mean of its divisors is an integer number (10265136).

Almost surely, 2^70999943 is an apocalyptic number.

70999943 is a deficient number, since it is larger than the sum of its proper divisors (11121145).

70999943 is a wasteful number, since it uses less digits than its factorization.

70999943 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 122293.

The product of its (nonzero) digits is 551124, while the sum is 50.

The square root of 70999943 is about 8426.1463908480. The cubic root of 70999943 is about 414.0816641316.

The spelling of 70999943 in words is "seventy million, nine hundred ninety-nine thousand, nine hundred forty-three".